Home / 210,147.42-315,197.77-75,206.05

Finding the Fourth Proportional to 210,147.42, 315,197.77 and 75,206.05

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Solution

The fourth proportional to 210,147.42, 315,197.77 and 75,206.05 is: 112,800.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,147.42 : 315,197.77 = 75,206.05 : x
  2. Step 2: Convert to fraction form
    210,147.42/315,197.77 = 75,206.05/x
  3. Step 3: Cross multiply
    210,147.42x = 315,197.77 × 75,206.05
  4. Step 4: Simplify right side
    210,147.42x = 23,704,779,250.51
  5. Step 5: Solve for x
    x = 23,704,779,250.51/210,147.42
  6. Step 6: Final answer
    x = 112,800.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.